Leases - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term	6 years 10 months 24 days
Operating lease right of use assets	$ 21,000
Operating lease liabilities	$ 29,402
Incremental borrowing rate	4.73%
Lease cost	$ 5,100	$ 6,900	$ 6,100
Operating cash flows from operating leases	$ 5,000
2019		6,100
2020		6,500
2021		5,100
2022		3,900
2023		3,500
Thereafter		$ 12,900
Minimum
Lessee, Lease, Description [Line Items]
Remaining initial lease term	1 year 3 months 18 days
Term of options to extend	3 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining initial lease term	10 years 3 months 18 days
Term of options to extend	15 years